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If │S11│>1 or │S22│>1, the amplifier cannot be unconditionally stable.

If │S11│>1 or │S22│>1, the amplifier cannot be unconditionally stable. Correct Answer True

If │S11│>1 or │S22│>1, the amplifier cannot be unconditionally stable because we can have a source or load impedance of Zₒ leading to Гs=0 or ГL=0, thus causing output and input reflection coefficients greater than 1.

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